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CVE-2022-49277 (GCVE-0-2022-49277)

Vulnerability from cvelistv5 – Published: 2025-02-26 01:56 – Updated: 2026-05-11 18:56
VLAI
Title
jffs2: fix memory leak in jffs2_do_mount_fs
Summary
In the Linux kernel, the following vulnerability has been resolved: jffs2: fix memory leak in jffs2_do_mount_fs If jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error, we can observe the following kmemleak report: -------------------------------------------- unreferenced object 0xffff88811b25a640 (size 64): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ backtrace: [<ffffffffa493be24>] kmem_cache_alloc_trace+0x584/0x880 [<ffffffffa5423a06>] jffs2_sum_init+0x86/0x130 [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0 [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30 [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0 [...] unreferenced object 0xffff88812c760000 (size 65536): comm "mount", pid 691, jiffies 4294957728 (age 71.952s) hex dump (first 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ backtrace: [<ffffffffa493a449>] __kmalloc+0x6b9/0x910 [<ffffffffa5423a57>] jffs2_sum_init+0xd7/0x130 [<ffffffffa5400e58>] jffs2_do_mount_fs+0x798/0xac0 [<ffffffffa540acf3>] jffs2_do_fill_super+0x383/0xc30 [<ffffffffa540c00a>] jffs2_fill_super+0x2ea/0x4c0 [...] -------------------------------------------- This is because the resources allocated in jffs2_sum_init() are not released. Call jffs2_sum_exit() to release these resources to solve the problem.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:45 UTC
CWE
  • CWE-401 - Missing Release of Memory after Effective Lifetime
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 2a9d8184458562e6bf2f40d0e677fc85e2dd3834 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 9a0f6610c7daedd2eace430beeb08a8b7ac80699 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < dbe0d0521eaa6a3d235517319266c539bb5c5112 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 0978e9af4559a171ac7a74a1b3ef21804b0a0fa9 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 607d3aab7349f18e0d9dba4100d09d16fe27caca (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 4392e8aeebc5a4f8073620bccba7de1b1f6d7c88 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < 5f34310d1376ca5b2ed798258def2c2ab3cc6699 (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < c94128470e6fe53d9bd9d16d2d3271813f9d37af (git)
Affected: e631ddba588783edd521c5a89f7b2902772fb691 , < d051cef784de4d54835f6b6836d98a8f6935772c (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.15
Unaffected: 0 , < 2.6.15 (semver)
Unaffected: 4.9.311 , ≤ 4.9.* (semver)
Unaffected: 4.14.276 , ≤ 4.14.* (semver)
Unaffected: 4.19.238 , ≤ 4.19.* (semver)
Unaffected: 5.4.189 , ≤ 5.4.* (semver)
Unaffected: 5.10.110 , ≤ 5.10.* (semver)
Unaffected: 5.15.33 , ≤ 5.15.* (semver)
Unaffected: 5.16.19 , ≤ 5.16.* (semver)
Unaffected: 5.17.2 , ≤ 5.17.* (semver)
Unaffected: 5.18 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: fix memory leak in jffs2_do_mount_fs\n\nIf jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error,\nwe can observe the following kmemleak report:\n\n--------------------------------------------\nunreferenced object 0xffff88811b25a640 (size 64):\n  comm \"mount\", pid 691, jiffies 4294957728 (age 71.952s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003cffffffffa493be24\u003e] kmem_cache_alloc_trace+0x584/0x880\n    [\u003cffffffffa5423a06\u003e] jffs2_sum_init+0x86/0x130\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\n    [...]\nunreferenced object 0xffff88812c760000 (size 65536):\n  comm \"mount\", pid 691, jiffies 4294957728 (age 71.952s)\n  hex dump (first 32 bytes):\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n  backtrace:\n    [\u003cffffffffa493a449\u003e] __kmalloc+0x6b9/0x910\n    [\u003cffffffffa5423a57\u003e] jffs2_sum_init+0xd7/0x130\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\n    [...]\n--------------------------------------------\n\nThis is because the resources allocated in jffs2_sum_init() are not\nreleased. Call jffs2_sum_exit() to release these resources to solve\nthe problem."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: jffs2: se corrige la p\u00e9rdida de memoria en jffs2_do_mount_fs Si jffs2_build_filesystem() en jffs2_do_mount_fs() devuelve un error, podemos observar el siguiente informe de kmemleak: -------------------------------------------- objeto sin referencia 0xffff88811b25a640 (tama\u00f1o 64): comm \"mount\", pid 691, jiffies 4294957728 (edad 71,952 s) volcado hexadecimal (primeros 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ seguimiento inverso: [] kmem_cache_alloc_trace+0x584/0x880 [] jffs2_sum_init+0x86/0x130 [] jffs2_do_mount_fs+0x798/0xac0 [] jffs2_do_fill_super+0x383/0xc30 [] jffs2_fill_super+0x2ea/0x4c0 [...] objeto sin referencia 0xffff88812c760000 (tama\u00f1o 65536): comm \"montar\", pid 691, jiffies 4294957728 (edad 71,952 s) volcado hexadecimal (primeros 32 bytes): bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb ................ seguimiento inverso: [] __kmalloc+0x6b9/0x910 [] jffs2_sum_init+0xd7/0x130 [] jffs2_do_mount_fs+0x798/0xac0 [] jffs2_do_fill_super+0x383/0xc30 [] jffs2_fill_super+0x2ea/0x4c0 [...] -------------------------------------------- Esto se debe a que los recursos asignados en jffs2_sum_init() no se liberan. Llame a jffs2_sum_exit() para liberar estos recursos y resolver el problema."
          }
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            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njffs2: fix memory leak in jffs2_do_mount_fs\n\nIf jffs2_build_filesystem() in jffs2_do_mount_fs() returns an error,\nwe can observe the following kmemleak report:\n\n--------------------------------------------\nunreferenced object 0xffff88811b25a640 (size 64):\n  comm \"mount\", pid 691, jiffies 4294957728 (age 71.952s)\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n  backtrace:\n    [\u003cffffffffa493be24\u003e] kmem_cache_alloc_trace+0x584/0x880\n    [\u003cffffffffa5423a06\u003e] jffs2_sum_init+0x86/0x130\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\n    [...]\nunreferenced object 0xffff88812c760000 (size 65536):\n  comm \"mount\", pid 691, jiffies 4294957728 (age 71.952s)\n  hex dump (first 32 bytes):\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n    bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb bb  ................\n  backtrace:\n    [\u003cffffffffa493a449\u003e] __kmalloc+0x6b9/0x910\n    [\u003cffffffffa5423a57\u003e] jffs2_sum_init+0xd7/0x130\n    [\u003cffffffffa5400e58\u003e] jffs2_do_mount_fs+0x798/0xac0\n    [\u003cffffffffa540acf3\u003e] jffs2_do_fill_super+0x383/0xc30\n    [\u003cffffffffa540c00a\u003e] jffs2_fill_super+0x2ea/0x4c0\n    [...]\n--------------------------------------------\n\nThis is because the resources allocated in jffs2_sum_init() are not\nreleased. Call jffs2_sum_exit() to release these resources to solve\nthe problem."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T18:56:34.860Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/2a9d8184458562e6bf2f40d0e677fc85e2dd3834"
            },
            {
              "url": "https://git.kernel.org/stable/c/9a0f6610c7daedd2eace430beeb08a8b7ac80699"
            },
            {
              "url": "https://git.kernel.org/stable/c/dbe0d0521eaa6a3d235517319266c539bb5c5112"
            },
            {
              "url": "https://git.kernel.org/stable/c/0978e9af4559a171ac7a74a1b3ef21804b0a0fa9"
            },
            {
              "url": "https://git.kernel.org/stable/c/607d3aab7349f18e0d9dba4100d09d16fe27caca"
            },
            {
              "url": "https://git.kernel.org/stable/c/4392e8aeebc5a4f8073620bccba7de1b1f6d7c88"
            },
            {
              "url": "https://git.kernel.org/stable/c/5f34310d1376ca5b2ed798258def2c2ab3cc6699"
            },
            {
              "url": "https://git.kernel.org/stable/c/c94128470e6fe53d9bd9d16d2d3271813f9d37af"
            },
            {
              "url": "https://git.kernel.org/stable/c/d051cef784de4d54835f6b6836d98a8f6935772c"
            }
          ],
          "title": "jffs2: fix memory leak in jffs2_do_mount_fs",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49277",
        "datePublished": "2025-02-26T01:56:21.037Z",
        "dateReserved": "2025-02-26T01:49:39.298Z",
        "dateUpdated": "2026-05-11T18:56:34.860Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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